Finding the Fourth Proportional to 1,981.50, 2,970.09 and 884.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,981.50 : 2,970.09 = 884.31 : x
2. Step 2: Convert to fraction form
   1,981.50/2,970.09 = 884.31/x
3. Step 3: Cross multiply
   1,981.50x = 2,970.09 × 884.31
4. Step 4: Simplify right side
   1,981.50x = 2,626,480.29
5. Step 5: Solve for x
   x = 2,626,480.29/1,981.50
6. Step 6: Final answer
   x = 1,325.50